19935540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{110753}}^1$

素因数の和:110768

約数の個数: 36

約数和(自身を含む): 60471684

約数和(自身を除く): 40536144

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 110753, 221506, 332259, 443012, 553765, 664518, 996777, 1107530, 1329036, 1661295, 1993554, 2215060, 3322590, 3987108, 4983885, 6645180, 9967770, 19935540]

約数ペア:

[(1, 19935540), (2, 9967770), (3, 6645180), (4, 4983885), (5, 3987108), (6, 3322590), (9, 2215060), (10, 1993554), (12, 1661295), (15, 1329036), (18, 1107530), (20, 996777), (30, 664518), (36, 553765), (45, 443012), (60, 332259), (90, 221506), (180, 110753)]